Analysis

  • max time kernel
    33s
  • max time network
    12s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    21-04-2021 18:07

General

  • Target

    330983e21c3fec152bf33d35bff06b65d04f0cef36c95699e1826d706514ffd1.dll

  • Size

    162KB

  • MD5

    32dc78fec20937eca32814c002136a78

  • SHA1

    f22c14bddd3ef179de82c3d7c2cef193c43ea31a

  • SHA256

    330983e21c3fec152bf33d35bff06b65d04f0cef36c95699e1826d706514ffd1

  • SHA512

    04886e3ef87efbcf92e412e9be58ed33a36ff3958712b8138ddbdeb8c72fea985edff9b23f416236997098cfaf819909228d9d3a3b478db60bdc9ec5377bc76e

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\330983e21c3fec152bf33d35bff06b65d04f0cef36c95699e1826d706514ffd1.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1840
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\330983e21c3fec152bf33d35bff06b65d04f0cef36c95699e1826d706514ffd1.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1292

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1292-60-0x0000000000000000-mapping.dmp
  • memory/1292-61-0x0000000074D91000-0x0000000074D93000-memory.dmp
    Filesize

    8KB

  • memory/1292-62-0x0000000000190000-0x0000000000196000-memory.dmp
    Filesize

    24KB

  • memory/1292-63-0x0000000074510000-0x000000007453E000-memory.dmp
    Filesize

    184KB